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A bstract We present higher-derivative deformations of the ModMax theory which preserve both U (1) duality symmetry and Weyl invariance. In particular, we single out a class of deformations expected to describe a low-energy effective action for the ModMax theory. We also elaborate on (higher-derivative) deformations of the N N = 1 super ModMax theory.
Kuzenko et al. (Mon,) studied this question.